Tracker, AreaChart and Heatmap

Hi guys,

I just started out using OxyPlot and it works very well but it brought up some questions. Maybe you could help.

1) Is it possible to have the tracker right above the mouse and not on the closest point? That would probably smooth tracking through most plots.

2) Is it possible to have a little dot follow the line where the tracker would be and then on click show the tracker? So that the user always knows where the mouse is tracking the plot.

3) Is it possible to stop the lower plot of an areachart from being tracked? Its just a lower boundary in my case and not used for any data.

4) Is there a way to get a line chart with multiple colors like the heatmap. I would like to set thresholds and then have the line colored to show different heights right in the plot color.

Thanks in advance